package com.atguigu.day72_demo;

import java.util.concurrent.CountDownLatch;

/**
 * @auther zzyy
 * @create 2024-08-06 8:29
 * CountDownLatch主要有两个方法，当一个或多个线程调用await方法时，这些线程会阻塞。
 * 其它线程调用countDown方法会将计数器减1(调用countDown方法的线程不会阻塞)，
 * 当计数器的值变为0时，因await方法阻塞的线程会被唤醒，继续执行。
 */
public class CountDownLatchDemo {
    public static void main(String[] args) throws InterruptedException {
        CountDownLatch countDownLatch = new CountDownLatch(6);
        for (int i = 1; i <7 ; i++) {
            int number=i;
            new Thread(()->{
                System.out.println(Thread.currentThread().getName()+"第"+number+"个线程走了");
                    countDownLatch.countDown();
            },String.valueOf(i)).start();

        }
        countDownLatch.await();
        System.out.println(Thread.currentThread().getName()+"关闭了");
    }

}